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CHARLES F. SPAULDING, OF ST. JOHNSBURY. VERMONT.

Letters Patent No. 70,281, dated October 29, 1867.

IMPRVED MACHINE POE SPINNING METALS.

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TO ALL PERSONS TO WHOM THESE PRESENTS SHALL COME:

Be it known that I, CHARLES F. SPAULDING, of St. Johnsbnry, in the county of Caledonia, and State of Vermont, have invented an Improved Machine for Spinning Metalnnd I do hereby declare the same to be fully described in the following specification, and represented in the accompanying drawings, of which- Figure 1 is n sideelcvstion, and

.Figure 2 a longitudinal and vertical section of such machine.

My present invention has special reference to that pntented by me, und described in Letters Patent No. 54,621, dated May 8, 1866. The purpose of my present machine is the same as that of the patented one, viz, the reduction of o. plane disk or circular plete of tin or sheet metal to n concavo-convex form, or to impart to it n. series of concentric eorrugetions, whereby. it may be mode to tnke the. shape of the concave face of the rotary die-wheel ofthe machine or other shcpeto be given'it by the spinning-wheels, the samey being to convert the plane-plete either into s cover suitable for s pot or vessel, or to give toit the shape of e. common dinnerplete or dish.

In the drawings, A denotes the rotary dienvheel of the machine, such wheel' b eing mounted orscreived on one end of' e rotary shaft, B, duly supported in, and so as to be capable not only of being revolved in, but of being slid lengthwise in o. puppet-heed or frame Cf The said frame C is to be so supported by the main frame or basc'pnrt Doi' the machine es to be capable of being adjusted with respect to its altitude. For this purpose 'n shank, a, projecting down from the frame C, extends into s. tubular standard, ofthe base D,- such standard being provided with s. clamp-screw, e, which screws'into it, and against the shank, or into a. vertical groove, d, made therein, and for the purpose of preventing the puppet from revolving. The vertical adjustment of the frame C is to enable the shaft B to be properly elevted for holding a. die-wheel of any size in its correct posh tion with reference to the spinning-Wheel or wheels, a series of which is represented et i! m n o p, in figs. 1 end 2,113 applied to or upon an arm of nbent or right-angular lever, E, whose fulcrum-pin e goes through its shorter erm and two standards ff, between whiclisuch shorter arm is arranged. These standards are extended up from the base-plnte or frame. The longer arm of the lever E is to be cylindrical, and at or neer the shorter erm is to be provided with e. shoulder, g, for supporting the lower of the series of spinning-wheels. A handle, F, provided with s. socket, 7L, to tit on the longer erm of the lever E, end also with a set-screw, i, to clamp the arm and socket together, is to be applied to'end so as to extend from the lever E in manner as represented.

The above-described construction of the lever E, and application of the handle to it, enable the spinningwheels to be removed from the lever, and one or more others of diierent forms and sizes to be substituted for them, as circumstances may require.

.'I'he die-w`hcel I form with n narrow opening, k, on its periphery, such, at its extremities, leading into n semicirc'ulnr groove, g, made in the wheel, the same being as shown in figs. 1 and 2, and also in iig. 3, which is n crosslsection of the die-wheel taken nt right angles to its axis, und through the opening c and groove g. The purpose of the opening k is to enable n. disk of metal to be introduced `into the die-wheel, and into the semi circular groove, and against the annular shoulder r formed in the wheel, such shoulder being for supporting the disknt or near its circumference during the process of rendering the'disk concave. The internal or lesser dismetcr of the groove should be equal to or e. little greater than the diameter of the disk after having been spun, such being to enable the disk to readily separate from the wheel when suchgdisk is drawn ont of it in the direction of its axis. For supporting the die-wheel A nenr its circumference, and keeping it in its due relation to the spinning-wheels while it may be in :the act of being revolved, provide it with an adjustable snstsining= roller, G,errnnged es represented in the drawings, and applied to a slider, H, which is held in e standard of the beso-frame by c clampcrcw, s, the whole being as represented in tige. 1 and 2. A crank, I, is fixed on the outer end of the shaft B. By revolving the shaft by means of such crank, and by forcing the spinningmheels Y by means of their levers up to a. disk-or plate of metal held in the dieqvlxeel, suchjdisk mnybe spun or converted into n concavo-convex plate.

In my patented machine the spinning-wheels were supported by shorinontnl mandrel, provided with chandwheel and screw for moving'it longitudinollygso es to force the spinning-wheels toward the die-wheeL In my present machinethe spinningnrheelsnre applied to clever having its fulcrum arranged about on a level with or below the lower edge of the die-wheel. The lever, with its handle, not only enables the spinning-wheels to be worked or moved toward and away from the die-wheel more expeditiously than they can by the means employed for such .purpose in ,my patented machine, but causes the spinning-wheels rst to act on the plate at a point about midway between its centre and circumference. The spinning of the plate,.while being performed, is thus caused to take place in two directions, that is, toward the centre and circumference of the plate. This renders the plate not so liable to gather or pucker as when the spinning of it progresses wholly in one direction, viz, from its centre to its circumference, or the reverse; besides, the bent levers enable the spring-rollers or wheels to be quickly moved to such a distance from the die-wheel as to carry them out of the way of the application of a clamp-ring to or its removal from the die-wheel. In my patented machine the series of spring-wheels were adjustable vertically to admit of their being arranged in their proper relation to thede-wheel, but in my present machine the'die-whetel supporting-puppet is provided with means for adjusting it in vertical directions so as to bring the-die-wheel into its proper elevationwith respect to the bent lever and its spinning-wheels.

I herein make no claim to the mechanism, combination, or devices covered by o'r represented in the patent hcreinbefore mentioned.

I claim as improvements the following, that is to say- I claim the arrangement and combination of a lever, E, with the spinning-wheel or wheels and die-wheel, substantially as set forth. v

I alsoclaim the die-wheel, as constructed, with the peripheral opening k and the groove q arranged in it, substantially as and for the purpose hereinbefore set forth.

I also claim the combination and arrangement ofthe supporting-roller Gr and its adjustable devices, as described, with the die-wheel and its shaft movable lengthwise, as setforth. l

I also claim, in combination with the spinning-wheel, supporting-lever, and the die-wheel shaft, arranged as described, the devices, by which.v the vertical adjustment and longitudinal movements of the said shaft may be eected, as set forth.

I also claim the arrangement and combination of the separate handle F, and its fixtures, substantially as described, with the' lever E and the spinning' and die-wheels, arranged as explained.

CHAS. E. SPAULDING.

Witnesses:

R. IL-EDDY, SAMUEL N. PIPER. 

